1 files changed, 587 insertions, 0 deletions
diff --git a/sys/directsound/gstdirectsoundsrc.c b/sys/directsound/gstdirectsoundsrc.c
new file mode 100644
index 00000000..429d6b85
--- /dev/null
+++ b/sys/directsound/gstdirectsoundsrc.c
@@ -0,0 +1,587 @@
+/*
+ * GStreamer
+ * Copyright 2005 Thomas Vander Stichele <thomas@apestaart.org>
+ * Copyright 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+ * Copyright 2005 Sébastien Moutte <sebastien@moutte.net>
+ * Copyright 2006 Joni Valtanen <joni.valtanen@movial.fi>
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Alternatively, the contents of this file may be used under the
+ * GNU Lesser General Public License Version 2.1 (the "LGPL"), in
+ * which case the following provisions apply instead of the ones
+ * mentioned above:
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */  
+    
+/*
+  TODO: add device selection and check rate etc.
+*/ 
+    
+#ifdef HAVE_CONFIG_H
+#  include "config.h"
+#endif /* 
+ */
+    
+#include <gst/gst.h>
+#include <gst/audio/gstbaseaudiosrc.h>
+    
+#include "gstdirectsoundsrc.h"
+    
+#include <windows.h>
+#include <dsound.h>
+    
+GST_DEBUG_CATEGORY_STATIC (directsoundsrc_debug);
+
+#define GST_CAT_DEFAULT directsoundsrc_debug
+
+static GstElementDetails gst_directsound_src_details =
+    
+GST_ELEMENT_DETAILS ("Audio Source (DIRECTCSOUND)", 
+"Source/Audio",
+    
+"Capture from a soundcard via DIRECTSOUND",
+    
+"Joni Valtanen <joni.valtanen@movial.fi>");
+
+/* defaults here */ 
+#define DEFAULT_DEVICE 0
+    
+/* properties */ 
+    enum
+{ 
+PROP_0, 
+PROP_DEVICE 
+};
+
+static HRESULT (WINAPI * pDSoundCaptureCreate) (LPGUID,
+    
+LPDIRECTSOUNDCAPTURE *, 
+LPUNKNOWN);
+
+static void gst_directsound_src_finalise (GObject * object);
+
+static void gst_directsound_src_set_property (GObject * object,
+    
+guint prop_id, 
+const GValue * value, 
+GParamSpec * pspec);
+
+static void gst_directsound_src_get_property (GObject * object,
+    
+guint prop_id, 
+GValue * value, 
+GParamSpec * pspec);
+
+static gboolean gst_directsound_src_open (GstAudioSrc * asrc);
+
+static gboolean gst_directsound_src_close (GstAudioSrc * asrc);
+
+static gboolean gst_directsound_src_prepare (GstAudioSrc * asrc,
+    
+GstRingBufferSpec * spec);
+
+static gboolean gst_directsound_src_unprepare (GstAudioSrc * asrc);
+
+static void gst_directsound_src_reset (GstAudioSrc * asrc);
+
+static GstCaps *gst_directsound_src_getcaps (GstBaseSrc * bsrc);
+
+static guint gst_directsound_src_read (GstAudioSrc * asrc, 
+gpointer data,
+    
+guint length);
+
+static void gst_directsound_src_dispose (GObject * object);
+
+static void gst_directsound_src_do_init (GType type);
+
+static guint gst_directsound_src_delay (GstAudioSrc * asrc);
+
+static GstStaticPadTemplate directsound_src_src_factory =
+    
+GST_STATIC_PAD_TEMPLATE (
+"src", 
+GST_PAD_SRC, 
+GST_PAD_ALWAYS,
+    
+GST_STATIC_CAPS ("audio/x-raw-int, " 
+        "endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " 
+        "signed = (boolean) { TRUE, FALSE }, " 
+ "width = (int) 16, " 
+        "depth = (int) 16, " 
+ "rate = (int) [ 1, MAX ], "
+        "channels = (int) [ 1, 2 ]; " 
+ "audio/x-raw-int, " 
+        "signed = (boolean) { TRUE, FALSE }, " 
+ "width = (int) 8, " 
+        "depth = (int) 8, " 
+ "rate = (int) [ 1, MAX ], "
+        "channels = (int) [ 1, 2 ]"));
+
+static void 
+gst_directsound_src_do_init (GType type) 
+{
+  
+GST_DEBUG_CATEGORY_INIT (directsoundsrc_debug, "directsoundsrc", 0,
+      
+"DirectSound Src");
+
+} 
+GST_BOILERPLATE_FULL (GstDirectSoundSrc, gst_directsound_src,
+    GstAudioSrc, 
+GST_TYPE_AUDIO_SRC, gst_directsound_src_do_init);
+
+static void 
+gst_directsound_src_dispose (GObject * object) 
+{
+  
+G_OBJECT_CLASS (parent_class)->dispose (object);
+
+} 
+static void 
+
+gst_directsound_src_finalise (GObject * object) 
+{
+  
+GstDirectSoundSrc * dsoundsrc = GST_DIRECTSOUND_SRC (object);
+  
+g_mutex_free (dsoundsrc->dsound_lock);
+
+} 
+static void 
+
+gst_directsound_src_base_init (gpointer g_class) 
+{
+  
+GstElementClass * element_class = GST_ELEMENT_CLASS (g_class);
+  
+GST_DEBUG ("initializing directsoundsrc base\n");
+  
+gst_element_class_set_details (element_class, &gst_directsound_src_details);
+  
+gst_element_class_add_pad_template (element_class,
+      
+gst_static_pad_template_get (&directsound_src_src_factory));
+
+} 
+
+/* initialize the plugin's class */ 
+static void 
+gst_directsound_src_class_init (GstDirectSoundSrcClass * klass) 
+{
+  
+GObjectClass * gobject_class;
+  
+GstElementClass * gstelement_class;
+  
+GstBaseSrcClass * gstbasesrc_class;
+  
+GstBaseAudioSrcClass * gstbaseaudiosrc_class;
+  
+GstAudioSrcClass * gstaudiosrc_class;
+  
+gobject_class = (GObjectClass *) klass;
+  
+gstelement_class = (GstElementClass *) klass;
+  
+gstbasesrc_class = (GstBaseSrcClass *) klass;
+  
+gstbaseaudiosrc_class = (GstBaseAudioSrcClass *) klass;
+  
+gstaudiosrc_class = (GstAudioSrcClass *) klass;
+  
+GST_DEBUG ("initializing directsoundsrc class\n");
+  
+gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_directsound_src_finalise);
+  
+gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_directsound_src_dispose);
+  
+gobject_class->get_property =
+      GST_DEBUG_FUNCPTR (gst_directsound_src_get_property);
+  
+gobject_class->set_property =
+      GST_DEBUG_FUNCPTR (gst_directsound_src_set_property);
+  
+gstbasesrc_class->get_caps =
+      GST_DEBUG_FUNCPTR (gst_directsound_src_getcaps);
+  
+gstaudiosrc_class->open = GST_DEBUG_FUNCPTR (gst_directsound_src_open);
+  
+gstaudiosrc_class->close = GST_DEBUG_FUNCPTR (gst_directsound_src_close);
+  
+gstaudiosrc_class->read = GST_DEBUG_FUNCPTR (gst_directsound_src_read);
+  
+gstaudiosrc_class->prepare = GST_DEBUG_FUNCPTR (gst_directsound_src_prepare);
+  
+gstaudiosrc_class->unprepare =
+      GST_DEBUG_FUNCPTR (gst_directsound_src_unprepare);
+  
+gstaudiosrc_class->delay = GST_DEBUG_FUNCPTR (gst_directsound_src_delay);
+  
+gstaudiosrc_class->reset = GST_DEBUG_FUNCPTR (gst_directsound_src_reset);
+
+} 
+static GstCaps *
+
+gst_directsound_src_getcaps (GstBaseSrc * bsrc) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+GstCaps * caps = NULL;
+  
+GST_DEBUG ("get caps\n");
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (bsrc);
+  
+caps = gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD 
+          (bsrc)));
+  
+return caps;
+
+}
+
+
+static void 
+gst_directsound_src_set_property (GObject * object, guint prop_id,
+    
+const GValue * value, GParamSpec * pspec) 
+{
+  
+      //  GstDirectSoundSrc *src = GST_DIRECTSOUND_SRC (object);
+      GST_DEBUG ("set property\n");
+  
+switch (prop_id)
+    
+ {
+      
+#if 0
+          /* FIXME */ 
+    case PROP_DEVICE:
+      
+src->device = g_value_get_uint (value);
+      
+break;
+      
+#endif /* 
+ */
+    default:
+      
+G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      
+break;
+    
+}
+
+}
+
+
+static void 
+gst_directsound_src_get_property (GObject * object, guint prop_id,
+    
+GValue * value, GParamSpec * pspec) 
+{
+  
+#if 0
+      GstDirectSoundSrc * src = GST_DIRECTSOUND_SRC (object);
+  
+#endif /* 
+ */
+      
+GST_DEBUG ("get property\n");
+  
+switch (prop_id) {
+      
+#if 0
+          /* FIXME */ 
+    case PROP_DEVICE:
+      
+g_value_set_uint (value, src->device);
+      
+break;
+      
+#endif /* 
+ */
+    default:
+      
+G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      
+break;
+  
+}
+
+}
+
+
+/* initialize the new element
+ * instantiate pads and add them to element
+ * set functions
+ * initialize structure
+ */ 
+static void 
+gst_directsound_src_init (GstDirectSoundSrc * src,
+    
+GstDirectSoundSrcClass * gclass) 
+{
+  
+GST_DEBUG ("initializing directsoundsrc\n");
+  
+src->dsound_lock = g_mutex_new ();
+
+} 
+static gboolean 
+
+gst_directsound_src_open (GstAudioSrc * asrc) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+HRESULT hRes;                /* Result for windows functions */
+  
+GST_DEBUG ("initializing directsoundsrc\n");
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (asrc);
+  
+      /* Open dsound.dll */ 
+      dsoundsrc->DSoundDLL = LoadLibrary ("dsound.dll");
+  
+if (!dsoundsrc->DSoundDLL) {
+    
+goto dsound_open;
+  
+}
+  
+      /* Building the DLL Calls */ 
+      pDSoundCaptureCreate = 
+      (void *) GetProcAddress (dsoundsrc->DSoundDLL,
+      
+TEXT ("DirectSoundCaptureCreate"));
+  
+      /* If everything is not ok */ 
+      if (!pDSoundCaptureCreate) {
+    
+goto capture_function;
+  
+}
+  
+      /* FIXME: add here device selection */ 
+      /* Create capture object */ 
+      hRes = pDSoundCaptureCreate (NULL, &dsoundsrc->pDSC, NULL);
+  
+if (FAILED (hRes)) {
+    
+goto capture_object;
+  
+}
+  
+return TRUE;
+
+capture_function:
+ {
+    
+FreeLibrary (dsoundsrc->DSoundDLL);
+    
+GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ, 
+        ("Unable to get capturecreate function"), (NULL));
+    
+return FALSE;
+  
+}
+
+capture_object:
+ {
+    
+FreeLibrary (dsoundsrc->DSoundDLL);
+    
+GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ, 
+        ("Unable to create capture object"), (NULL));
+    
+return FALSE;
+  
+}
+
+dsound_open:
+ {
+    
+GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ, 
+        ("Unable to open dsound.dll"), (NULL));
+    
+return FALSE;
+  
+}
+
+}
+
+
+static gboolean 
+gst_directsound_src_close (GstAudioSrc * asrc) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+HRESULT hRes;                /* Result for windows functions */
+  
+GST_DEBUG ("initializing directsoundsrc\n");
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (asrc);
+  
+      /* Release capture handler  */ 
+      hRes = IDirectSoundCapture_Release (dsoundsrc->pDSC);
+  
+      /* Close library */ 
+      FreeLibrary (dsoundsrc->DSoundDLL);
+  
+return TRUE;
+
+}
+
+
+static gboolean 
+gst_directsound_src_prepare (GstAudioSrc * asrc, GstRingBufferSpec * spec) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+WAVEFORMATEX wfx;            /* Wave format structure */
+  
+HRESULT hRes;                /* Result for windows functions */
+  
+DSCBUFFERDESC descSecondary; /* Capturebuffer decsiption */
+  
+int fmt = 0;                /* audio format */
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (asrc);
+  
+GST_DEBUG ("initializing directsoundsrc\n");
+  
+      /* Define buffer */ 
+      memset (&wfx, 0, sizeof (WAVEFORMATEX));
+  
+wfx.wFormatTag = WAVE_FORMAT_PCM;    /* should be WAVE_FORMAT_PCM */
+  
+wfx.nChannels = spec->channels;
+  
+wfx.nSamplesPerSec = spec->rate;     /* 8000|11025|22050|44100 */
+  
+wfx.wBitsPerSample = spec->width;    // 8|16;
+  
+wfx.nBlockAlign = wfx.nChannels * (wfx.wBitsPerSample / 8);
+  
+wfx.nAvgBytesPerSec = wfx.nSamplesPerSec * wfx.nBlockAlign;
+  
+wfx.cbSize = 0;              /* This size is allways for PCM-format */
+  
+      /* 1 or 2 Channels etc...
+         FIXME: Never really tested. Is this ok?
+       */ 
+      if (spec->width == 16 && spec->channels == 1) {
+    
+spec->format = GST_S16_LE;
+  
+} else if (spec->width == 16 && spec->channels == 2) {
+    
+spec->format = GST_U16_LE;
+  
+} else if (spec->width == 8 && spec->channels == 1) {
+    
+spec->format = GST_S8;
+  
+} else if (spec->width == 8 && spec->channels == 2) {
+    
+spec->format = GST_U8;
+  
+}
+  
+      /* Set the buffer size to two seconds. 
+         This should never reached. 
+       */ 
+      dsoundsrc->buffer_size = wfx.nAvgBytesPerSec * 2;
+  
+      //notifysize * 16; //spec->width; /*original 16*/
+      GST_DEBUG ("Buffer size: %d", dsoundsrc->buffer_size);
+  
+      /* Init secondary buffer desciption */ 
+      memset (&descSecondary, 0, sizeof (DSCBUFFERDESC));
+  
+descSecondary.dwSize = sizeof (DSCBUFFERDESC);
+  
+descSecondary.dwFlags = 0;
+  
+descSecondary.dwReserved = 0;
+  
+      /* This is not primary buffer so have to set size  */ 
+      descSecondary.dwBufferBytes = dsoundsrc->buffer_size;
+  
+descSecondary.lpwfxFormat = &wfx;
+  
+      /* Create buffer */ 
+      hRes =
+      IDirectSoundCapture_CreateCaptureBuffer (dsoundsrc->pDSC, 
+&descSecondary,
+      
+&dsoundsrc->pDSBSecondary, 
+NULL);
+  
+if (hRes != DS_OK) {
+    
+goto capture_buffer;
+  
+}
+  
+spec->channels = wfx.nChannels;
+  
+spec->rate = wfx.nSamplesPerSec;
+  
+spec->bytes_per_sample = (spec->width / 8) * spec->channels;
+  
+dsoundsrc->bytes_per_sample = spec->bytes_per_sample;
+  
+GST_DEBUG ("latency time: %llu - buffer time: %llu", 
+spec->latency_time,
+      spec->buffer_time);
+  
+      /* Buffer-time should be allways more than 2*latency */ 
+      if (spec->buffer_time < spec->latency_time * 2) {
+    
+spec->buffer_time = spec->latency_time * 2;
+    
+GST_WARNING ("buffer-time was less than latency");
+  
+}
+  
+      /* Save the times */ 
+      dsoundsrc->buffer_time = spec->buffer_time;
+  
+dsoundsrc->latency_time = spec->latency_time;
+  
+dsoundsrc->latency_size =
+      (gint) wfx.nAvgBytesPerSec * 
+dsoundsrc->latency_time / 1000000.0;
+  
+spec->segsize =
+      (guint) (((double) spec->buffer_time / 1000000.0) * 
+wfx.nAvgBytesPerSec);
+  
+      /* just in case */ 
+      if (spec->segsize < 1)
+    
+spec->segsize = 1;
+  
+spec->segtotal = spec->width * (wfx.nAvgBytesPerSec / spec->segsize);
+  
+GST_DEBUG ("bytes/sec: %d, buffer size: %d, segsize: %d, segtotal: %d",
+      
+wfx.nAvgBytesPerSec, 
+dsoundsrc->buffer_size, 
+spec->segsize,
+      
+spec->segtotal);
+  
+spec->silence_sample[0] = 0;
+  
+spec->silence_sample[1] = 0;
+  
+spec->silence_sample[2] = 0;
+  
+spec->silence_sample[3] = 0;
+  
+if (spec->width != 16 && spec->width != 8)
+    
+goto dodgy_width;
+  
+      /* Not readed anything yet */ 
+      dsoundsrc->current_circular_offset = 0;
+  
+GST_DEBUG ("GstRingBufferSpec->channels: %d, GstRingBufferSpec->rate: %d, \
+GstRingBufferSpec->bytes_per_sample: %d\n\
+WAVEFORMATEX.nSamplesPerSec: %ld, WAVEFORMATEX.wBitsPerSample: %d, \
+WAVEFORMATEX.nBlockAlign: %d, WAVEFORMATEX.nAvgBytesPerSec: %ld\n", 
+spec->channels, spec->rate, spec->bytes_per_sample, 
+wfx.nSamplesPerSec, wfx.wBitsPerSample, 
+wfx.nBlockAlign, wfx.nAvgBytesPerSec);
+  
+return TRUE;
+
+wrong_format:
+ {
+    
+GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ, 
+        ("Unable to get format %d", spec->format), (NULL));
+    
+return FALSE;
+  
+}
+
+capture_buffer:
+ {
+    
+GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ, 
+        ("Unable to create capturebuffer"), (NULL));
+    
+return FALSE;
+  
+}
+
+dodgy_width:
+ {
+    
+GST_ELEMENT_ERROR (dsoundsrc, RESOURCE, OPEN_READ, 
+        ("Unexpected width %d", spec->width), (NULL));
+    
+return FALSE;
+  
+}
+
+}
+
+
+static gboolean 
+gst_directsound_src_unprepare (GstAudioSrc * asrc) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+HRESULT hRes;               /* Result for windows functions */
+  
+      /* Resets */ 
+      GST_DEBUG ("unpreparing directsoundsrc");
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (asrc);
+  
+      /* Stop capturing */ 
+      hRes = IDirectSoundCaptureBuffer_Stop (dsoundsrc->pDSBSecondary);
+  
+      /* Release buffer  */ 
+      hRes = IDirectSoundCaptureBuffer_Release (dsoundsrc->pDSBSecondary);
+  
+return TRUE;
+
+}
+
+
+/* 
+return number of readed bytes */ 
+static guint 
+gst_directsound_src_read (GstAudioSrc * asrc, gpointer data, guint length) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+HRESULT hRes;               /* Result for windows functions */
+  
+DWORD dwCurrentCaptureCursor = 0;
+  
+DWORD dwBufferSize = 0;
+  
+LPVOID pLockedBuffer1 = NULL;
+  
+LPVOID pLockedBuffer2 = NULL;
+  
+DWORD dwSizeBuffer1 = 0;
+  
+DWORD dwSizeBuffer2 = 0;
+  
+DWORD dwStatus = 0;
+  
+GST_DEBUG ("reading directsoundsrc\n");
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (asrc);
+  
+GST_DSOUND_LOCK (dsoundsrc);
+  
+      /* Get current buffer status */ 
+      hRes =
+      IDirectSoundCaptureBuffer_GetStatus (dsoundsrc->pDSBSecondary,
+      
+&dwStatus);
+  
+      /* Starting capturing if not allready */ 
+      if (!(dwStatus & DSCBSTATUS_CAPTURING)) {
+    
+hRes =
+        IDirectSoundCaptureBuffer_Start (dsoundsrc->pDSBSecondary,
+        
+DSCBSTART_LOOPING);
+    
+        //    Sleep (dsoundsrc->latency_time/1000);
+        GST_DEBUG ("capture started");
+  
+}
+  
+      //  calculate_buffersize:
+      while (length > dwBufferSize) {
+    
+Sleep (dsoundsrc->latency_time / 1000);
+    
+hRes =
+        
+IDirectSoundCaptureBuffer_GetCurrentPosition (dsoundsrc->pDSBSecondary,
+        
+&dwCurrentCaptureCursor, 
+NULL);
+    
+        /* calculate the buffer */ 
+        if (dwCurrentCaptureCursor < dsoundsrc->current_circular_offset) {
+      
+dwBufferSize = dsoundsrc->buffer_size - 
+          (dsoundsrc->current_circular_offset - 
+dwCurrentCaptureCursor);
+    
+} else {
+      
+dwBufferSize =
+          
+dwCurrentCaptureCursor - dsoundsrc->current_circular_offset;
+    
+}
+  
+}                          // while (...
+  
+      /* Lock the buffer */ 
+      hRes =
+      IDirectSoundCaptureBuffer_Lock (dsoundsrc->pDSBSecondary,
+      
+dsoundsrc->current_circular_offset, 
+length, 
+&pLockedBuffer1,
+      
+&dwSizeBuffer1, 
+&pLockedBuffer2, 
+&dwSizeBuffer2, 
+0L);
+  
+      /* Copy buffer data to another buffer */ 
+      if (hRes == DS_OK) {
+    
+memcpy (data, pLockedBuffer1, dwSizeBuffer1);
+  
+}
+  
+      /* ...and if something is in another buffer */ 
+      if (pLockedBuffer2 != NULL) {
+    
+memcpy ((data + dwSizeBuffer1), pLockedBuffer2, dwSizeBuffer2);
+  
+}
+  
+dsoundsrc->current_circular_offset += dwSizeBuffer1 + dwSizeBuffer2;
+  
+dsoundsrc->current_circular_offset %= dsoundsrc->buffer_size;
+  
+IDirectSoundCaptureBuffer_Unlock (dsoundsrc->pDSBSecondary, 
+pLockedBuffer1,
+      
+dwSizeBuffer1, 
+pLockedBuffer2, 
+dwSizeBuffer2);
+  
+GST_DSOUND_UNLOCK (dsoundsrc);
+  
+      /* return length (readed data size in bytes) */ 
+      return length;
+
+}
+
+
+static guint 
+gst_directsound_src_delay (GstAudioSrc * asrc) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+HRESULT hRes;
+  
+DWORD dwCurrentCaptureCursor;
+  
+DWORD dwBytesInQueue = 0;
+  
+gint nNbSamplesInQueue = 0;
+  
+GST_DEBUG ("Delay\n");
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (asrc);
+  
+      /* evaluate the number of samples in queue in the circular buffer */ 
+      hRes =
+      
+IDirectSoundCaptureBuffer_GetCurrentPosition (dsoundsrc->pDSBSecondary,
+      
+&dwCurrentCaptureCursor, 
+NULL);
+  
+      /* FIXME: Check is this calculated right */ 
+      if (hRes == S_OK) {
+    
+if (dwCurrentCaptureCursor < dsoundsrc->current_circular_offset) {
+      
+dwBytesInQueue =
+          
+dsoundsrc->buffer_size - (dsoundsrc->current_circular_offset -
+          
+dwCurrentCaptureCursor);
+    
+} else {
+      
+dwBytesInQueue =
+          
+dwCurrentCaptureCursor - dsoundsrc->current_circular_offset;
+    
+}
+    
+nNbSamplesInQueue = dwBytesInQueue / dsoundsrc->bytes_per_sample;
+  
+}
+  
+return nNbSamplesInQueue;
+
+}
+
+
+static void 
+gst_directsound_src_reset (GstAudioSrc * asrc) 
+{
+  
+GstDirectSoundSrc * dsoundsrc;
+  
+LPVOID pLockedBuffer = NULL;
+  
+DWORD dwSizeBuffer = 0;
+  
+GST_DEBUG ("reset directsoundsrc\n");
+  
+dsoundsrc = GST_DIRECTSOUND_SRC (asrc);
+  
+#if 0
+      IDirectSoundCaptureBuffer_Stop (dsoundsrc->pDSBSecondary);
+  
+#endif /* 
+ */
+      
+GST_DSOUND_LOCK (dsoundsrc);
+  
+if (dsoundsrc->pDSBSecondary) {
+    
+        /*stop capturing */ 
+        HRESULT hRes =
+        IDirectSoundCaptureBuffer_Stop (dsoundsrc->pDSBSecondary);
+    
+        /*reset position */ 
+        /*    hRes = IDirectSoundCaptureBuffer_SetCurrentPosition (dsoundsrc->pDSBSecondary, 0); */ 
+        
+        /*reset the buffer */ 
+        hRes =
+        IDirectSoundCaptureBuffer_Lock (dsoundsrc->pDSBSecondary,
+        
+dsoundsrc->current_circular_offset, dsoundsrc->buffer_size,
+        
+pLockedBuffer, &dwSizeBuffer, NULL, NULL, 0L);
+    
+if (SUCCEEDED (hRes)) {
+      
+memset (pLockedBuffer, 0, dwSizeBuffer);
+      
+hRes =
+          
+IDirectSoundCaptureBuffer_Unlock (dsoundsrc->pDSBSecondary,
+          pLockedBuffer, 
+dwSizeBuffer, NULL, 0);
+    
+}
+    
+dsoundsrc->current_circular_offset = 0;
+  
+}
+  
+GST_DSOUND_UNLOCK (dsoundsrc);
+
+}
+
+